It looks as though they have only booked you for one ticket, I'm sorry.
Could you redo booking for 3 people please.
train-arriveby train-day train-departure train-destination train-people
train-arriveby train-day train-departure train-destination train-people
train-arriveby train-day train-departure train-destination train-people
train-arriveby train-day train-departure train-destination train-people